Emission module and mounting and adjustment method of the same, LiDAR and smart sensing device

An emission module, comprising:

• an emission apparatus and a collimating element provided sequentially along an outgoing laser,
• wherein the emission apparatus is configured to generate the outgoing laser, and the collimating element is configured to collimate the outgoing laser generated by the emission apparatus and emit the outgoing laser;
• and
• the collimating element comprises:
• a fast-axis collimating element and a slow-axis collimating element provided sequentially along the outgoing laser,
• wherein the fast-axis collimating element is configured to receive the outgoing laser generated by the emission apparatus and collimate the outgoing laser in a fast-axis direction, and
• wherein the slow-axis collimating element is configured to receive the outgoing laser collimated in the fast-axis direction, collimate the outgoing laser in the slow-axis direction, and emit the outgoing laser;
• wherein the fast-axis collimating element comprises a fast-axis collimating lens, and the slow-axis collimating element comprises a slow-axis collimating lens;
• wherein the fast-axis collimating lens is an aspherical cylindrical lens, and the slow-axis collimating lens is a spherical cylindrical lens;
• a generatrix direction of the fast-axis collimating lens is perpendicular to a generatrix direction of the slow-axis collimating lens;
• wherein the fast-axis collimating lens is provided in a fast-axis collimating lens holder;
• and
• wherein the slow-axis collimating lens is provided in a slow-axis collimating lens holder,
• wherein the fast-axis collimating lens holder comprises a first vertical plate, and
• wherein a first mounting aperture for vertically providing the fast-axis collimating lens is arranged on the first vertical plate;
• wherein the fast-axis collimating lens holder further comprises a first side baffle, a second side baffle, and a top baffle that extend perpendicular to the first vertical plate, and
• wherein the first side baffle, the top baffle, and the second side baffle are sequentially connected, to form a hollow framework;
• wherein the slow-axis collimating lens holder comprises a second vertical plate, and a second mounting aperture for vertically providing the fast-axis collimating lens is arranged on the second vertical plate;
• wherein the slow-axis collimating lens holder further comprises a third side baffle and a fourth side baffle that extend perpendicular to the second vertical plate, and
• wherein the third side baffle, the second vertical plate, and the fourth side baffle are sequentially connected, to form a framework of a U-shape.